Everything you need to know and know how in all subjects. A double page per concept, with: - The course, clear and complete, to retain the essentials; - Methods and many examples, to know how to use the course in the exercises; - More than 700 quizzes and progressive exercises, to train well; - All the detachable answers in the Parents Guide; - 150 interactive quizzes to test yourself for free in each subject; - Free English audio files.